CN206734077U - Lift the device of pure electric automobile course continuation mileage - Google Patents

Abstract

The device of the entitled lifting pure electric automobile course continuation mileage of the utility model patent.The trunnion axis form of the utility model Universal Windmill, by electric automobile, caused wind energy is converted into electric energy in traveling, then this electric energy is fed back to the input of electric automobile, positive feedback effect is produced, so as to improve the course continuation mileage of pure electric automobile.Micro wind turbine generator is provided with bearing on chassis, electric automobile speed it is relatively low or parking during, can automatic or manual change micro wind turbine generator to wind direction, charge a battery.

Description

Lift the device of pure electric automobile course continuation mileage

Technical field

Pure electric automobile manufacturing field is the utility model is related to, pure electric automobile course continuation mileage is lifted more particularly to one kind Device.

Background technology

When speaking of electric automobile, the problem of so generally can be all faced：" electric automobile can run how far" because in most people Eye in, the pure electronic vehicles, such as electric motorcycle or battery truck, can only often travel very short distance.

The fact is also such.Compared to the gasoline car that can easily travel more than 500 kilometers, the continuation of the journey of most of electric automobiles Mileage reaches 500 kilometers of course continuation mileages, only tesla Model S are a, such course continuation mileage about 150 kilometers Completely car demand is used it is impossible to meet user.In addition, what on earth the reason is major part producer will set the mileage of electric automobile Count so short, and the problem of people usually think deeply.

Electric automobile during traveling mileage is designed to it is shorter, very big one side the reason for be the Cost Problems of battery.Do one Individual simple calculating：Electrokinetic cell (by taking ferric phosphate lithium cell as an example) on the market at present, 3000 yuan are generally needed per once TV university Left and right, the electric automobile of 150 kilometers of continuation of the journey probably need 24 degree of electricity left and right, and total price is about 70,000 yuan.That is, you buy one The electric automobile of the km of course continuation mileage 150, wherein 70,000 yuan are flowers on battery.Therefore, for car enterprise Want produce an electric automobile that can be played a decisive match with gasoline car, first in price can not than same type gasoline overall height from Spectrum.So if a car is equipped with excessive battery, even if this electric automobile runs remote again, consumer also is difficult to receive.

Pure electric automobile course continuation mileage ranking in 2015：

Ranking	Pure electric automobile brand vehicle	Pure electric automobile course continuation mileage (kilometer)
			1	BYD E6	300
2	Rise gesture electric automobile	300
			3	What happy iEV5 of Yangze river and Huai river	200
4	Occasion play matinal electric car	160-180
			5	Chang'an E30	160
6	Honda flies degree EVCONCEDT	150
			7	Sail SPRINGD2010	130
8	Upper vapour Roewe E50	120

It can thus be seen that the course continuation mileage meaning of lifting pure electric automobile is very great, it is the pass of Development of EV Key, if the distance travelled that pure electric automobile can not be once charged increases to the level close to gasoline car, then, allow people to make Home of preserving our planet, will be just very difficult work with electric automobile come energy-saving and emission-reduction.

There is a kind of wind power generation plant of an engineers design for being called Robert Yost in tool report, the U.S. --- MicroCube, and be mounted on a Ford C-Max Energi, represent significantly lift the course continuation mileage of electric car.

This TRT for being called MicroCube is the combination of a set of " small-sized fanses+generator " in fact, can be exported Three-phase alternating current, direct current is converted into afterwards and supplies electricity to battery pack charging.

The structure chart on this covering device has been found from U.S.Patent ＆ Trademark Office (USPTO).In the information of registration, this is special Profit name be：" Modular micro wind turbine " (above content sources are in network)

Pass through the analysis to this patent structure figure, it can be seen that the windmill of its wind-power electricity generation used is only resistance-type Windmill, its efficiency is not above 15%, and this just greatly weakens the actual effect of this device, in addition its practicality all by To suspection.In the course continuation mileage system of this lifting electric car, windmill efficiency is only possible to show that its lifting is pure more than 30% The effect of electric automobile course continuation mileage.In addition, the wind-driven generator output end and battery both output ends connection, only It is in order that generator is converted into direct current and supplies electricity to battery pack charging, is in parallel, this would not produce positive feedback effect.

The utility model patent is then universal using core component of the more efficient Universal Windmill as wind-power electricity generation, utilization The trunnion axis form of windmill, completes the wind-powered electricity generation conversion of wind-force of the electric automobile formed in traveling, and the electric energy of conversion just Electric automobile is fed back to, produces positive feedback effect, the course continuation mileage for the pure electric automobile that is bound to greatly improve.Speed is travelled in vehicle When spending relatively low or parking, can by the rolling bearing on micro wind turbine generator chassis, automatic or manual change windmill to wind Direction, it is allowed towards the maximum direction of wind speed, to charge a battery all the time.

The content of the invention

One, mechanical structures

Micro wind turbine generator part in apparatus of the present invention, it is exactly actually that the leaf oar for removing the Universal Windmill for adjusting oar length is stretched Contracting function and its control section, along with the rolling bearing on wind-driven generator chassis and chassis is formed.Windmill by support, leaf oar, Leaf oar head, the part of rotating shaft four composition.2~4 leaf oars are evenly distributed on around rotating shaft, and leaf oar is fixed on support by leaf oar head On, the aerofoil profile of leaf oar cross section is the airfoil type with camber, and windmill support is fixed on micro wind turbine generator rotor case, hair Motor stator rotating shaft is supported by the support on shell and fixed, and rotating shaft is vertical with the windmill support surfaces of revolution, parallel with wind direction.Leaf oar can The gradient (α), the degree of eccentricity (β), the installation angle of attack (γ) of leaf oar are adjusted by three respective axes of rotation on leaf oar head.

The exhibition of leaf oar has certain angle of inclination, leaf oar spanwise axis and the angle of the support surfaces of revolution to relative to windmill shaft Leaf oar gradient (α) is defined as, is represented with angle.Because the utility model applies the trunnion axis form of Universal Windmill, rotating shaft It is parallel with wind direction, so gradient (α) is between 0~30 degree.

Deviation distance and the ratio of its maximum deviation distance between the pressure line of leaf oar and rotating shaft are defined as the degree of eccentricity (β), is represented with percentage.The size of the degree of eccentricity (β) and the leaf oar angle of attack and leaf oar by wind-force act on caused by detent torque Relevant with rotational torque and wind sweeping area, greatly, caused detent torque and rotational torque sweep wind face to the degree of eccentricity (β) with regard to big Product is reduced.

The angle of the aerofoil profile string of a musical instrument and airflow direction is defined as the leaf oar angle of attack, and it is suitable with the angle of attack of aircraft wing.Windmill is quiet The aerofoil profile string of a musical instrument and the angle of horizontal direction are defined as installing the angle of attack (γ) when only, are represented with angle.So the leaf oar angle of attack is by pacifying Fill the angle of attack (γ) and the continually changing variable angle of attack is dimerous with the change of wind speed.It is appropriate to change the installation angle of attack (γ), the leaf oar angle of attack can be made to be in optimum state, also be no more than stall angle in windmill operation, make windmill efficiency factor Most preferably.

Windmill, because leaf oar is fixed on support by leaf oar head and has certain installation angle of attack (γ), just makes in static state Its windward side produces with wind direction and necessarily tilted (as propeller windmill), and just generating startup component makes Windmill rotary.

After Windmill rotary gets up, because the leaf oar of windmill is the airfoil type with camber, have when being fixed on support certain The degree of eccentricity (β), according to aerodynamic principle, lift will be produced on leaf oar, then lift is just broken down into parallel to rotation The component of plane and the component perpendicular to Plane of rotation.Parallel to the component of the surfaces of revolution, the torque for rotating support will be produced, So as to accelerate Windmill rotary；Perpendicular to the component of the surfaces of revolution together with the leverage of support and the effect of the degree of eccentricity (β), also shape Into the torque of rotation, also accelerate the rotation of windmill；The quickening of Windmill rotary, increases lift, promotes the torque increase of rotation again, Windmill rotary is set to obtain faster ..., material is thus formed positive feedback, produces positive feedback effect, improves windmill efficiency.

Windmill support is arranged on the rotor case of micro wind turbine generator (with general wind-driven generator on the contrary, inside is Stator, outside are rotors), stator is equipped with magnet exciting coil, and rotor is equipped with lead-out terminal, and generator is sent into the defeated of electric energy with wire The output end for going out end and battery is coupled in series input in pure electric automobile, and in battery and wind-driven generator Between check valve is housed, to ensure to be fed back to positive feedback.

Micro wind turbine generator is installed in the big shell of circle, and big shell is arranged on chassis, and bearing is housed on chassis Make wind-driven generator free to rotate to wind direction, when Vehicle Speed is relatively low or parking, automatic or manual changes windmill To wind direction, allow windmill all the time towards the maximum direction of wind speed, and switch the closure of generator and battery, allow generating Machine charges a battery.

Two, operation principles

Turn on the power switch, allow the battery of electric automobile to motor, then, motor begins to rotate.Electricity The rotation of motivation has just driven wheel rotation, makes automobile start to start traveling.After electric automobile during traveling gets up, automobile will be made Relative motion is produced with surrounding air, so as to form wind.If now allow the windmill to be generated electricity using this wind, and sending Electricity is taken back the accumulator output end of electric automobile by positive feedback form, which forms closed loop positive feedback, and it is caused positive and negative Feedback effect will lift the course continuation mileage of pure electric automobile.

After the backfeed loop of electric automobile application wind-power electricity generation, system block diagrams are as shown in Figure 3；

Referring to accompanying drawing 3, Wo Menshe：P1 is input (being assumed to be voltage or current signal)；P2 for output (be assumed to be voltage or Current signal)；K is multiplication factor when being not added with feedback；β is positive and negative feedforward coefficient in figure, then, it can be deduced that following equation：

P2=(P1+P2 β) K ... ... (1)

(1-K β) P2=K P1 ... ... (2)

P2/P1=K/ (1-K β) ... ... (3)

Wherein P2/P1 can regard the benefit of closed-loop system as.For electric automobile, it can regard as actual course continuation mileage With battery institute electric power storage can be corresponding course continuation mileage ratio, current (Q) is represented.

By formula 3, it can be seen that, ratio (Q) and K, β are relevant.K is multiplication factor when being not added with positive feedback, and β is positive feedback Coefficient.From formula (3) it can also be seen that as K=β=1, P2/P1 ratios (Q) will tend to ∞.

Certainly, we can mathematically depict relation of the ratio (Q) between K, β.

Relation of the ratio (Q) between K, β is had a look for simple, intuitive, it will be assumed that during K 0,1,0.3,0.5, β Also it is 0.1,0.3,0.5, then, ratio (Q) should be how many

Result of calculation is as follows：

Data among form have added the P2/P1 ratios (Q) after positive feedback for the electronic circuit.

As can be seen from the table, P2/P1 ratios (Q) have relation, K, β increase efficiency increase with K, β.It is if setting K, β 0.5, then added positive feedback with not plus compared with positive feedback, P2/P1 ratios (Q) add 33.32%；If K is set as 0.3, β For 0.5, then positive feedback is added with not plus compared with positive feedback, P2/P1 ratios (Q) increase by 17.67%；

K is such as regarded as to the energy conversion efficiency of pure electric automobile, β is regarded as to the energy conversion efficiency of backfeed loop windmill, So, P2/P1 ratios (Q) and K, β related table are in shown in following table：

By can see in table, if K, β are regarded as the efficiency as electric automobile and windmill, then, only have in table The part for having the numerical monitor of shading can just allow the device of the course continuation mileage of lifting pure electric automobile show effect；Other Numerical portion is by no effect or loses more than gain.And the state of the art of our current electric automobiles and windmill is only in nothing Shading numerical portion, it is desirable to which the trunnion axis form of the utility model patent application Universal Windmill can pour as backfeed loop Shading numeric area.

If K, β increases are to a certain extent, P2/P1 ratio (Q) is more than 1, now, is somewhat like institute in an external story As saying：The one group of soldier, which marches, passes through a bridge block, because the frequency of paces and the intrinsic frequency of bridge are identical and occur Resonance, so that the phenomenon of bridge avalanche is similar, everything remains to be tested by practice.3-4 times perhaps can be lifted Ru feasible Course continuation mileage.

Brief description of the drawings

Fig. 1 be windmill top view wherein：1 leaf oar；2 micro wind turbine generators；3 supports；4 leaf oar heads；

Fig. 2 be windmill side view wherein：1 leaf oar；2 micro wind turbine generators；3 leaf oar heads；

Fig. 3 is the system block diagrams that pure electric automobile is added after the backfeed loop of wind-power electricity generation

Fig. 4 be micro wind turbine generator stereogram wherein：1 shell；2 wind-driven generators；3 chassis；4 wind-powered electricity generation machine supports；

Embodiment

Referring to accompanying drawing 1,2,3.

Leaf oar is made with alloy aluminum, fiberglass, stainless sheet steel etc., leaf oar head is manufactured with carbon steel or stainless steel, then will Leaf oar is with leaf oar head by diagram on generator amature shell (direction of rotation of attention leaf oar and the direction of the degree of eccentricity (β)). Shell and the chassis of complete machine are made of thin steel version, bearing is housed under chassis, then by micro wind turbine generator loaded on automobile top or Other positions, generator is sent into the output end of electric energy with wire and the output end of battery is coupled in series in pure electronic The input of automobile, and check valve is housed between battery and wind-driven generator, to ensure to be fed back to positive feedback.

Claims (4)

1. a kind of device for lifting pure electric automobile course continuation mileage, is made up of windmill, generator, air channel, control device；The present apparatus In windmill be made up of support, leaf oar, leaf oar head, the part of rotating shaft four, 2~4 leaf oars are evenly distributed on around rotating shaft, and leaf oar leads to Cross leaf oar head to be fixed on support, the aerofoil profile of leaf oar cross section is the airfoil type with camber, and support is fixed on wind-driven generator and turned On subshell, generator unit stator rotating shaft is vertical with support Plane of rotation, parallel with wind direction；Wherein：The exhibition of leaf oar is to relative to wind Car rotating shaft has certain angle of inclination, and leaf oar spanwise axis and the angle of the support surfaces of revolution are defined as leaf oar gradient (α), use angle Represent；Deviation distance and the ratio of its maximum deviation distance between the pressure line of leaf oar and rotating shaft diametrically are defined as bias Spend (β), represented with percentage；The angle of the aerofoil profile string of a musical instrument and airflow direction is defined as the leaf oar angle of attack, its angle of attack with aircraft wing Quite；Leaf oar can adjust the gradient (α), the degree of eccentricity (β), the installation angle of attack of leaf oar by three respective axes of rotation on leaf oar head (γ), maximum so as to reach detent torque and rotational torque, wind sweeping area is maximum, and windmill efficiency factor is optimal.

2. the device of lifting pure electric automobile course continuation mileage according to claim 1, it is characterized in that：Windmill in static state, Because leaf oar is fixed on support by leaf oar head and has certain installation angle of attack (γ), its windward side is just set to be produced with wind direction certain Tilt, as propeller windmill, producing startup component makes Windmill rotary；After Windmill rotary gets up, because the leaf oar of windmill It is the airfoil type with camber, there is certain degree of eccentricity (β) when being fixed on support, will on leaf oar according to aerodynamic principle Lift is produced, this lift will produce the power for rotating support under the collective effect of the leverage of support and the degree of eccentricity (β) Square, so as to accelerate Windmill rotary；The quickening of Windmill rotary, increases lift, promotes the torque increase of rotation again, makes Windmill rotary Obtain faster, material is thus formed positive feedback, improves windmill efficiency.

3. the device of lifting pure electric automobile course continuation mileage according to claim 1, it is characterized in that：Windmill support is arranged on On the rotor case of micro wind turbine generator, with general wind-driven generator on the contrary, inside is stator, outside is rotor, and stator fills Have magnet exciting coil, rotor is equipped with lead-out terminal, with wire by generator send the output end of electric energy and the output end of battery with Cascade is connected to the input of pure electric automobile, forms positive feedback, and equipped with single between battery and wind-driven generator To valve, to ensure to be fed back to positive feedback.

4. the device of lifting pure electric automobile course continuation mileage according to claim 1, it is characterized in that：Micro wind turbine generator It is installed in the big shell of circle, big shell is arranged on chassis, makes wind-driven generator free to rotate equipped with bearing on chassis It is to wind direction；Vehicle Speed it is relatively low or parking when, automatic or manual change windmill to wind direction, allow windmill all the time The direction maximum towards wind speed, and switch the closure of generator and battery, allow generator to charge a battery.